Abstract: An access point (AP) and a station (STA) communicate with each other, with the AP indicating to the STA either or both of a preamble detection (PD) channel and a signaling (SIG) content channel and with the STA being initially monitoring a primary frequency segment of a plurality of frequency segments in an operating bandwidth of the AP. A downlink (DL) or triggered uplink (UL) communication is performed between the AP and the STA during a transmission opportunity (TXOP) such that: (i) during the TXOP, the STA monitors a preamble on the PD channel and decodes a SIG content on the SIG content channel; and (ii) after an end of the TXOP, the STA switches to the primary frequency segment.

Abstract: The present invention provides a tensile resistant light string comprising: multiple illuminating units electrically connected by multiple wires, wherein each one of the wires comprising: a tensile resistant layer; a conductive layer wrapping the tensile resistant layer, and an insulating layer wrapping the conductive layer; and wherein the insulating layer is made of cotton fiber, the conductive layer is consisting of multiple metal lines, the metal lines are made of copper, the tensile resistant layer is consisting of at least one line. The tensile resistance of the wires is enhanced by the tensile resistant layer.

Abstract: An AC to DC power adapter with an AC output has an AC output terminal serving to supply AC power to other equipment and connect to a peering AC to DC power adapter, such that multiple AC to DC power adapters can be connected in series with each other. Because all the AC to DC power adapters for installation at a site can be fully reused and no additional power adapters need to be purchased, material cost can be reduced. Also because the AC to DC power adapters can be relocated and reoriented and are sequentially connected with each other without having to concern locations of the fixed wall outlets to be connected, installation convenience can be ensured.

Abstract: A frequency detection circuit and a detection method thereof suitable for a clock data recovery (CDR) circuit are provided. The frequency detection circuit includes a phase detector, a first delayer, a frequency detector, and a logic circuit. The phase detector samples a data signal according to a first clock signal provided by the CDR circuit and provides a phase instruction signal according to the sampling. The first delayer delays the first clock signal to obtain a second clock signal. The frequency detector samples the data signal according to the second clock signal and provides a frequency instruction signal according to the sampling. The logic circuit generates a clock instruction signal according to the phase instruction signal and the frequency instruction signal. The CDR circuit adjusts the frequency of the first clock signal according to the status of the clock instruction signal.

Abstract: A frequency detection circuit and a detection method thereof suitable for a clock data recovery (CDR) circuit are provided. The frequency detection circuit includes a phase detector, a first delayer, a frequency detector, and a logic circuit. The phase detector samples a data signal according to a first clock signal provided by the CDR circuit and provides a phase instruction signal according to the sampling. The first delayer delays the first clock signal to obtain a second clock signal. The frequency detector samples the data signal according to the second clock signal and provides a frequency instruction signal according to the sampling. The logic circuit generates a clock instruction signal according to the phase instruction signal and the frequency instruction signal. The CDR circuit adjusts the frequency of the first clock signal according to the status of the clock instruction signal.